The Simpson STD.48 Signature Knit Nomex Suit's offer superior fire protection over others. It meets and exceeds SFI 3.3/20 ratings, while being made out of a light-weight, comfortable fabric. Each Signature Knit Nomex piece has a subtle stretch for added mobility.
The STD.48 Suits are available in Black, Red, and Blue. Also, you have the option of choosing the pieces in the Diamond Nomex, a lighter-weight, more breathable material then the standard Signature Knit.